<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <style>
        .one {
            color: #39f;
        }

        .two {
            color: #ccc;
        }
    </style>
</head>

<body>
    <div id="app"></div>
    <script src="./src/react.js"></script>
    <script src="./src/react-dom.js"></script>
    <script src="./src/babel.js"></script>
    <script type="text/babel">
        let flag = false
        let str;
        if (flag == false) {
            str = 'aaa'
        } else {
            str = 'ccc'
        }
        let dom = (
            <div>
                <h1 style={{ color: "red", background: '#ccc' }}>莫吉托</h1>
                <h1 className="one">777</h1>
                <h1 className={flag == true ? 'one' : 'two'}>{str.split('').reverse('').join('')}</h1>

            </div>
        )
        ReactDOM.render(
            dom,
            document.getElementById('app')
        )
    </script>
</body>

</html>